John Gibbons is an Irish environmental campaigner and the founder of the climatechange.ie website. He also co-founded the healthcare publishing and communications specialists MedMedia Group. Gibbons contributes a weekly column to The Irish Times, analysing aspects of climate change and sustainability. In his writing, he has criticised the recent trend of the media "giving too much coverage to 'anti-science' climate change deniers and failing to convey the gravity of the threat, making readers and viewers apathetic". Gibbons has also been critical of the stance taken on the issue of global warming by RTÉ broadcaster Pat Kenny.

In one of his columns in 2010, Gibbons wrote that the Irish economy was particularly vulnerable to the phenomenon of peak oil.